| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1297.88 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1333.15 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1298.21 | USD | 20251103 |
| Shandong Langchem | China national standards | MT | 1333.48 | USD | 20251103 |
| Shandong Langchem | China national standards | MT | 1333.24 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1297.97 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1297.97 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1297.97 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1333.24 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1333.24 | USD | 20251031 |